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<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1,maximum-scale=1,user-scalable=no">
  <meta name="format-detection" content="telephone=no">
  <title>Observe demo</title>
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<body>
  <p>响应式 demo</p>

  <script src="./observe.js"></script>
  <!-- <script src="./proxy-observe.js"></script> -->
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</html>